Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs may be affected by issues such as malfunction. Certain issues might require professional attention, however many can be resolved at home.
The first step is generally to replace the battery. The majority of fobs are powered by flat watch-style battery, which can be easily found in hardware or auto parts stores.
Dead Battery
If a key fob battery is dead, it could be a major hassle especially if you're far from home. There are solutions to get your vehicle back on the road in case you're keyless entry system isn't working.
The first thing to check is to see if the buttons on the fob still work. If they do, then the issue could be with your car's locks instead of the fob.
If your keys do not unlock, you might find a mechanical slot in the trim around your door handles or elsewhere in your car (consult the owner's manual). Insert the mechanical key and try again. If this fails there are some cars that have an app that can unlock the doors remotely. For instance the FordPass Connect app, the myChevrolet mobile app and myMazda app allow owners to unlock their doors with their smartphones. These apps charge a monthly subscription fee.
You should also make sure that your key fob isn't draining the car's battery by being plugged into it. A dead fob can drain your battery quickly especially if it's used to control the TV or phone while you are watching.
Holding the key fob right towards the start button could cause the key fob that has a low battery. It's a simple fix that can save you a trip to the dealership or even select Interstate All Battery Center locations.
If your key fob won't work try testing it in a car with a push-button starter. If it fails it's likely that the battery requires replacement. It's a good idea keep an extra key fob in your backpack or purse.
Damaged Buttons
If your key fob doesn't have the ability to unlock doors or start your car remotely, it's possible that one or more of its buttons have been damaged. The key fob has a circuit with "contact pads" that are covered with an electrically conductor film. The film wears off over time. The wear may make your fob respond slow or not respond at all.
The good news is that the contact pad in the key fob of a car can be replaced easily, and can be done so with the help of a flathead screwdriver. If the key fob is badly smashed or harmed in any way, it might be more difficult to open the case, and you'll be required to take the fob to an auto repair shop for repairs.
It's not unusual for keys to be dropped on hard surfaces, tripped on or exposed to water. All of these events can cause physical damage to the keys, including bending or snapping them.
This could also affect the internals of your fob, which could lead to a malfunction. It's a good idea that's why you should always carry an extra fob in your purse or pocket in the event that the one you're using fails.
Make sure the battery is charged first to determine if the buttons on your key fob are not responding in the way they should. Key fobs don't need an electronic device. car remote key repair utilize the same battery for two dollars that is used in hearing aids and watches. These batteries are available in drug, hardware and online stores.
If the battery is in good condition the buttons could be dirty or worn out. You can easily clean them with a damp cloth. If the buttons do not work, you can test another car key fob. Look At This will help you determine whether the issue is yours or a particular model. If the other fob is working then it's likely your key fob needs to be reprogrammed, or perhaps replaced entirely.
Reprogramming
The hidden world of car key fobs is more intricate than what some myths would suggest. Basic fobs work using radio frequency signals that are specific to each vehicle. The fobs need to be correctly programmed to allow unlocking and starting the vehicle. Unfortunately it's not as easy as pressing a few buttons and with only a few exceptions it needs to be handled by a dealer.
Refer to the owner's manual for detailed instructions. Some manufacturers, such as Mercedes, use proprietary technology that ensures only the dealership can create an entirely new fob and then sync it with your vehicle. Some independent shops might offer this service, so be sure to read reviews and prices prior to choosing a shop.
Some car models will erase other fobs when they're reprogrammed. This means that you'll need to have additional fobs programmed by professionals. This is an expensive proposition, especially if you're down to one functioning fob. It is always advisable to have a spare mechanical key you can use to open the doors and trunk, even if it won't start the car.
Be prepared for a frustrating experience if you decide to reprogram your fob by yourself. There are numerous guides available online that promise to work however, you're likely to be disappointed. Many of these guides were written by individuals with no experience and are based on unsubstantiated claims. Some of these guides claim that you can easily program your car key fob with just the click of a button. This is false.
The battery is usually secured with a plastic clip, which is easily removed. However, the circuit board contains the battery, so you will need to carefully pry the battery out using the aid of a tool. You should be able to locate the button cell battery. This is usually an insignificant battery for a watch that is available at most pharmacies or home improvement stores. It's typically easy to replace the battery. Before replacing the whole unit, it's worth trying first.
Replacement
If your car key fob is damaged or isn't functioning it is crucial to know that there are several ways to address the issue. It is possible to fix the problem quickly by replacing the battery or reprogramming your key fob. However, a more extensive repair may be required. It's also beneficial to have a spare key fob in the event that one is lost or stolen.
Most modern key fobs contain a small physical key in addition the electronic component they use, which makes them both more expensive and more difficult to replace than traditional keys. Some "smart fobs" even come with remote starters. It's important to be aware that it can take up to an hour to cut and program the replacement fob to your vehicle.
Fobs utilize a small radio transmitter that is mounted on circuit boards to communicate with the car's receiver. When you press a button, the transmitter sends an RF signal specific to the car's receiver. The receiver detects and compares the signal with preprogrammed codes. This allows the driver to start the vehicle from a distance without the need to put the key in the ignition.
If your key fob buttons aren't responding or working in a sporadic manner, they may have been damaged by water. It is possible to fix the fob by disassembling it and inspecting for any broken or non-responsive buttons. If this doesn't solve the problem, you can try reprogramming your fob or purchasing another one.
Before buying a replacement key fob on the internet, contact a professional locksmith or your local dealer to make sure it's compatible with your vehicle's security systems. You can find aftermarket fobs cheaper, but it's essential to research the brands and read reviews prior to trying to program them. Certain fobs can be modified by an experienced locksmith and other models require programming equipment that only a mechanic or dealer is able to use.